| Table 4. Change in semen parameters at a constant sperm concentration | ||
| Semen volume | OR (95% CI) | p value |
| Age | 1.062 (1.041 - 1.084) |
<0.0001 |
| Sperm motility | OR (95% CI) | p value |
| Age | 1.073 (1.049 - 1.098) |
<0.0001 |
| OR: Odds Ratio,CI: Confidence Interval. | ||